Battery Life - Fluke ProcessMeter 789 Calibration Manual

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Battery Life

To avoid false readings, which can lead to possible electric shock or
personal injury, replace the batteries as soon as the low battery
indicator (M) appears.
The ProcessMeter is powered by four AA alkaline batteries.
Table 3 shows typical alkaline battery life. To preserve battery life:
Use current simulation instead of sourcing when possible.
Avoid using the backlight.
Do not disable the automatic power-off feature.
Turn the ProcessMeter off when not in use.
ProcessMeter Operation
Measuring any parameter
Simulating Current
Sourcing 12 mA into 500 Ω
Figure 1. Replacing the Batteries and Fuses
WXWarning
Table 3. Typical Alkaline Battery Life
F1
F2
Hours
140
140
10
789 ProcessMeter
Basic Maintenance
anw037.eps
9

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